About the security content of iOS 8.1.3

This document describes the security content of iOS 8.1.3

For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and any necessary patches or releases are available. To learn more about Apple Product Security, see the Apple Product Security website.

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A local user may be able to execute unsigned code

Description: A state management issue existed in the handling of Mach-O executable files with overlapping segments. This issue was addressed through improved validation of segment sizes.

CVE-ID

CVE-2014-4455 : TaiG Jailbreak Team

FontParser

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution

Description: A buffer overflow existed in the handling of font files. This issue was addressed through improved bounds checking.

CVE-ID

CVE-2014-4483 : Apple

FontParser

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Processing a maliciously crafted .dfont file may lead to an unexpected application termination or arbitrary code execution

Description: A memory corruption issue existed in the handling of .dfont files. This issue was addressed through improved bounds checking.

CVE-ID

CVE-2014-4484 : Gaurav Baruah working with HP's Zero Day Initiative

Foundation

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Viewing a maliciously crafted XML file may lead to an unexpected application termination or arbitrary code execution

Description: A buffer overflow existed in the XML parser. This issue was addressed through improved bounds checking.

CVE-ID

CVE-2014-4485 : Apple

IOAcceleratorFamily

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to execute arbitrary code with system privileges

Description: A null pointer dereference existed in IOAcceleratorFamily's handling of resource lists. This issue was addressed by removing unneeded code.

CVE-ID

CVE-2014-4486 : Ian Beer of Google Project Zero

IOHIDFamily

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to execute arbitrary code with system privileges

Description: A buffer overflow existed in IOHIDFamily. This issue was addressed through improved size validation.

CVE-ID

CVE-2014-4487 : TaiG Jailbreak Team

IOHIDFamily

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to execute arbitrary code with system privileges

Description: A validation issue existed in IOHIDFamily's handling of resource queue metadata. This issue was addressed through improved validation of metadata.

CVE-ID

CVE-2014-4488 : Apple

IOHIDFamily

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to execute arbitrary code with system privileges

Description: A null pointer dereference existed in IOHIDFamily's handling of event queues. This issue was addressed through improved validation.

CVE-ID

CVE-2014-4489 : @beist

iTunes Store

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A website may be able to bypass sandbox restrictions using the iTunes Store

Description: An issue existed in the handling of URLs redirected from Safari to the iTunes Store that could allow a malicious website to bypass Safari's sandbox restrictions. The issue was addressed with improved filtering of URLs opened by the iTunes Store.

CVE-ID

CVE-2014-8840 : lokihardt@ASRT working with HP's Zero Day Initiative

Kerberos

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to execute arbitrary code with system privileges

Description: The Kerberos libgssapi library returned a context token with a dangling pointer. This issue was addressed by improving state management.

CVE-ID

CVE-2014-5352

Kernel

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Maliciously crafted or compromised iOS applications may be able to determine addresses in the kernel

Description: An information disclosure issue existed in the handling of APIs related to kernel extensions. Responses containing an OSBundleMachOHeaders key may have included kernel addresses, which may aid in bypassing address space layout randomization protection. This issue was addressed by unsliding the addresses before returning them.

CVE-ID

CVE-2014-4491 : @PanguTeam, Stefan Esser

Kernel

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to execute arbitrary code with system privileges

Description: An issue existed in the kernel shared memory subsystem that allowed an attacker to write to memory that was intended to be read-only. This issue was addressed with stricter checking of shared memory permissions.

CVE-ID

CVE-2014-4495 : Ian Beer of Google Project Zero

Kernel

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Maliciously crafted or compromised iOS applications may be able to determine addresses in the kernel

Description: The mach_port_kobject kernel interface leaked kernel addresses and heap permutation value, which may aid in bypassing address space layout randomization protection. This was addressed by disabling the mach_port_kobject interface in production configurations.

CVE-ID

CVE-2014-4496 : TaiG Jailbreak Team

libnetcore

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious, sandboxed app can compromise the networkd daemon

Description: Multiple type confusion issues existed in networkd's handling of interprocess communication. By sending a maliciously formatted message to networkd, it may have been possible to execute arbitrary code as the networkd process. The issue is addressed through additional type checking.

CVE-ID

CVE-2014-4492 : Ian Beer of Google Project Zero

MobileInstallation

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious enterprise-signed application may be able to take control of the local container for applications already on a device

Description: A vulnerability existed in the application installation process. This was addressed by preventing enterprise applications from overriding existing applications in specific scenarios.

CVE-ID

CVE-2014-4493 : Hui Xue and Tao Wei of FireEye, Inc.

Springboard

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Enterprise-signed applications may be launched without prompting for trust

Description: An issue existed in determining when to prompt for trust when first opening an enterprise-signed application. This issue was addressed through improved code signature validation.

CVE-ID

CVE-2014-4494 : Song Jin, Hui Xue, and Tao Wei of FireEye, Inc.

WebKit

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Visiting a website that frames malicious content may lead to UI spoofing

Description: A UI spoofing issue existed in the handling of scrollbar boundaries. This issue was addressed through improved bounds checking.

CVE-ID

CVE-2014-4467 : Jordan Milne

WebKit

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Style sheets are loaded cross-origin which may allow for data exfiltration

Description: An SVG loaded in an img element could load a CSS file cross-origin. This issue was addressed through enhanced blocking of external CSS references in SVGs.

CVE-ID

CVE-2014-4465 : Rennie deGraaf of iSEC Partners

WebKit

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution

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